Answer:
The missing number is 21
Step-by-step explanation:
-12 + x = 9
x = 9 + 12
x = 21
Answer:
The speed in scientific notation is
feet per second.
Step-by-step explanation:
1. You have the following speed: One thousand one houndred feet per second.
2. You must convert from words to number. This is:
1,100 feet per second
3. To express this quantity in scientific notation, you can move the decimal point three places to the left, and write it as: 1.1 by
(or 1,000) as following:

52 is half of 104.
Is ur answer.
Answer:
-5
it is smaller than 7
Step-by-step explanation:
cuz my bwain say yes